FLOOD00644

• County: Logan
• Community: Sterling
• Title: Flood Control and Drainage Prioritization Analyses - Sterling and Vicinity
• Date: 11/8/1995
• Prepared For: Sterling
• Prepared By: Lidstone & Anderson, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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8. Hydrologic and Hydraulic Evaluation and Preparation of Letter of Map Revision
associated with Channel Improvements for Yellowstone Village near Dry Creek,
Cheyenne, Wyoming; and

9. Evaluation of Poudre River channel hydraulics in support of a Letter of Map Revision
associated with a proposed levee near Wastewater Treatment Plant #2 in Fort Collins.

2.3 Design of Hydraulic Structures, and Erosion and Sediment Transport Analyses

Several projects have also been completed involving the design of hydraulic structures
and flood control works. These structures include spillways, outlet works, weirs, grade control
and drop structures, bank and bridge protection measures, spur dikes, groins and jetties, and
inverted siphons. These projects have been conducted throughout the western United States for
numerous federal, state and local agencies as well as private industry. Corporate experience
includes completion of the following projects.

1. Mill Creek Channel Reclamation Project: hydraulic evaluation and design of channel
stabilization measures in Mill Creek near Horse Creek, Wyoming.

2. Tucker Gulch Channel Stabilization Project: hydraulic evaluation, design and stability
analysis of a series of drop structures in Tucker Gulch, Golden, Colorado.

3. River Training Manual for Papua New Guinea: analysis and development of design
standards for spur dikes/groins for channel and bridge protection in rivers throughout
Papua New Guinea.

4. Bear River Diversion and Municipal Intake Structure Project: evaluation and design of
a diversion structure and municipal intake system in the Bear River near Evanston,
Wyoming.

5. Green River Diversion and Municipal Intake Project: hydraulic and geomorphic analysis
and hydraulic design associated with the municipal river diversion and intake structure
on the Green River near Green River, Wyoming.

Some of LA's most extensive experience is in the analysis of sediment transport
conditions and channel response in both natural and modified river systems. Types of analysis
include long-term simulation of sediment transport in river systems, evaluation of channel
response to proposed river improvements, analysis of the impact of proposed water resources
projects on channel stability and transport conditions, determination of reservoir sedimentation,
modeling of sediment production from watersheds, and field measurements of sediment transport

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